US2993924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of antimonous acids and their pentavalent derivatives and methods of preparing same
Assignee: Hooker Chemical Corp
•
Filing: 1957-10-04
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Granted: 1961-07-25
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Expires: 1977-10-04
Abstract
No abstract record available.
Inventors
- 👤 Burton S Marks
- 👤 Blaine O Schoepfle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:45
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/90; C07F9/902; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PROCESS FOR THE PREPARATION OF PENTAVALENT ANTIMONY COMPOUNDS HAVING THE FOLLOWING STRUCTURAL FORMULA:
Claim 2
Dependent Claim
14 words
A PROCESS FOR THE PREPARATION OF PENTAVALENT ANTIMONY COMPOUNDS HAVING THE FOLLOWING STRUCTURAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |